1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
index 2de4e2eea180..e0acb0e5243b 100644
--- a/include/linux/devfreq.h
+++ b/include/linux/devfreq.h
@@ -104,6 +104,8 @@ struct devfreq_dev_profile {
  * struct devfreq_governor - Devfreq policy governor
  * @node:               list node - contains registered devfreq governors
  * @name:               Governor's name
+ * @immutable:          Immutable flag for governor. If the value is 1,
+ *                      this govenror is never changeable to other governor.
  * @get_target_freq:    Returns desired operating frequency for the device.
  *                      Basically, get_target_freq will run
  *                      devfreq_dev_profile.get_dev_status() to get the
@@ -121,6 +123,7 @@ struct devfreq_governor {
         struct list_head node;
 
         const char name[DEVFREQ_NAME_LEN];
+        const unsigned int immutable;
         int (*get_target_freq)(struct devfreq *this, unsigned long *freq);
         int (*event_handler)(struct devfreq *devfreq,
                                 unsigned int event, void *data);